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Bambradon
''Bambradon'' is a monotypic genus of marine ray-finned fish belonging to the family Bembridae, the deepwater flatheads. Its only species, ''Bambradon laevis'', is found in the northwestern Pacific Ocean off Japan. Taxonomy ''Bambradon'' has a single species, ''B' laevis'' which was first formally described in 1887 as ''Bembras laevis'' by the Swedish veterinarian Edvard Nyström in his publication of the collection of fishes from Japan held in the zoological museum of Uppsala University with its type locality given as Nagasaki. In 1908 the American ichthyologists David Starr Jordan and Robert Earl Richardson placed ''B. laevis'' in the monotypic genus ''Bambradon'' within the family Bembridae. The genus name is an ancient Greek word for a type of small fish, thought to be applied by Jordan and Richardson to emulate Georges Cuvier’s etymology for '' Bembras''. The specific name ''laevis'' means "smooth", alluding to the smooth top of the head of this species, lacking spines a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bembridae
Bembridae, the deep-water flatheads, are a family of bottom-dwelling ray-finned fishes. They are found in the Indian and western Pacific Oceans. Taxonomy Bembridae was first proposed as a family in 1873 by the German zoologist Johann Jakob Kaup. The 5th edition of ''Fishes of the World'' classifies this family within the suborder Platycephaloidei in the order Scorpaeniformes. Other authorities differ and do not consider the Scorpaeniformes to be a valid order because the Perciformes is not monophyletic without the taxa within the Scorpaeniformes being included within it. These authorities consider the Bembridae to belong to the suborder Platycephaloidei, along with the families Parabembridae, Hoplichthyidae, Platycephalidae and Plectrogeniidae within the Perciformes. This family is thought to be more primitive than their close relatives, the true flatheads. Despite the common name, their heads are only slightly flattened and have spiny ridges. Genera Bembridae contains 5 r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Starr Jordan
David Starr Jordan (January 19, 1851 – September 19, 1931) was the founding president of Stanford University, serving from 1891 to 1913. He was an ichthyologist during his research career. Prior to serving as president of Stanford University, he served as president of Indiana University Bloomington, Indiana University from 1885 to 1891. Jordan was also a strong supporter of eugenics, and his published views expressed a fear of "race-degeneration", asserting that cattle and human beings are "governed by the same laws of selection". He was an antimilitarist since he believed that war killed off the best members of the gene pool, and he initially opposed American involvement in World War I. Early life and education Jordan was born in Gainesville (town), New York, Gainesville, New York, and grew up on a farm in upstate New York. His parents made an unorthodox decision to educate him at a local girls' high school. His middle name, Starr, does not appear in early census records, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bembras
''Bembras'' is a genus of marine ray-finned fish belonging to the family Bembridae, the deepwater flatheads. These fishes are found in the Indian Ocean and the western Pacific Ocean. Taxonomy ''Bembras'' was first proposed as a monotypic genus in 1829 by the French zoologist George Cuvier when he described ''Bembras japonica'' from Japan. Cuvier did not explain the etymology of ''Bembras'', however, it is thought that it may come from an ancient Greek word for some sort of small fish, such as anchovy, sprat or smelt. which at least dates as far back as Aristotle. Cuvier applied this type of name to other genera he put forward, such as ''Synodontis'', '' Salanx'' or ''Premnas''. Species There are currently seven recognized species in this genus: * '' Bembras adenensis'' Imamura & L. W. Knapp, 1997 * '' Bembras andamanensis'' Imamura, Psomadakis & Thein, 2018 * '' Bembras japonica'' G. Cuvier, 1829 * '' Bembras leslieknappi'' Imamura, Psomadakis & Thein, 2018 * '' Bembras l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudal Fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only by muscles. Fish fins are distinctive anatomical features with varying structures among different clades: in ray-finned fish (Actinopterygii), fins are mainly composed of bony spines or rays covered by a thin stretch of scaleless skin; in lobe-finned fish (Sarcopterygii) such as coelacanths and lungfish, fins are short rays based around a muscular central bud supported by jointed bones; in cartilaginous fish (Chondrichthyes) and jawless fish (Agnatha), fins are fleshy " flippers" supported by a cartilaginous skeleton. Fins at different locations of the fish body serve different purposes, and are divided into two groups: the midsagittal ''unpaired fins'' and the more laterally located ''paired fins''. Unpaired fins are predominan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelvic Fin
Pelvic fins or ventral fins are paired fins located on the ventral (belly) surface of fish, and are the lower of the only two sets of paired fins (the other being the laterally positioned pectoral fins). The pelvic fins are homologous to the hindlimbs of tetrapods, which evolved from lobe-finned fish during the Middle Devonian. Structure and function Structure In actinopterygians, the pelvic fin consists of two endochondrally-derived bony girdles attached to bony radials. Dermal fin rays ( lepidotrichia) are positioned distally from the radials. There are three pairs of muscles each on the dorsal and ventral side of the pelvic fin girdle that abduct and adduct the fin from the body. Pelvic fin structures can be extremely specialized in actinopterygians. Gobiids and lumpsuckers modify their pelvic fins into a sucker disk that allow them to adhere to the substrate or climb structures, such as waterfalls. In priapiumfish, males have modified their pelvic structures into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pectoral Fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish aquatic locomotion, swim. Apart from the tail or caudal fin, fish fins have no direct connection with the vertebral column, back bone and are supported only by muscles. Fish fins are distinctive anatomical features with varying structures among different clades: in ray-finned fish (Actinopterygii), fins are mainly composed of bone, bony spine (zoology), spines or ray (fish fin anatomy), rays covered by a thin stretch of fish scale, scaleless skin; in lobe-finned fish (Sarcopterygii) such as coelacanths and lungfish, fins are short rays based around a muscular central limb bud, bud supported by appendicular skeleton, jointed bones; in cartilaginous fish (Chondrichthyes) and jawless fish (Agnatha), fins are fleshy "flipper (anatomy), flippers" supported by a cartilaginous skeleton. Fins at different locations of the fish body serve different purposes, and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palatine Bone
In anatomy, the palatine bones (; derived from the Latin ''palatum'') are two irregular bones of the facial skeleton in many animal species, located above the uvula in the throat. Together with the maxilla, they comprise the hard palate. Structure The palatine bones are situated at the back of the nasal cavity between the maxilla and the pterygoid process of the sphenoid bone. They contribute to the walls of three cavities: the floor and lateral walls of the nasal cavity, the roof of the mouth, and the floor of the orbits. They help to form the pterygopalatine and pterygoid fossae, and the inferior orbital fissures. Each palatine bone somewhat resembles the letter L, and consists of a horizontal plate, a perpendicular plate, and three projecting processes—the pyramidal process, which is directed backward and lateral from the junction of the two parts, and the orbital and sphenoidal processes, which surmount the vertical part, and are separated by a deep notch, the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vomer
The vomer (; ) is one of the unpaired facial bones of the skull. It is located in the midsagittal line, and articulates with the sphenoid, the ethmoid, the left and right palatine bones, and the left and right maxillary bones. The vomer forms the inferior part of the nasal septum in humans, with the superior part formed by the perpendicular plate of the ethmoid bone. The name is derived from the Latin word for a ploughshare and the shape of the bone. In humans The vomer is situated in the median plane, but its anterior portion is frequently bent to one side. It is thin, somewhat quadrilateral in shape, and forms the hinder and lower part of the nasal septum; it has two surfaces and four borders. The surfaces are marked by small furrows for blood vessels, and on each is the nasopalatine groove, which runs obliquely downward and forward, and lodges the nasopalatine nerve and vessels. Borders The ''superior border'', the thickest, presents a deep furrow, bounded on eith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preoperculum
This glossary of ichthyology is a list of definitions of terms and concepts used in ichthyology, the study of fishes. A B C D E F G H I J K L M N O P R S T U V W References Further reading * {{Cite book , last1=Moyle , first1=Peter , url=https://books.google.com/books?id=sZYWAQAAIAAJ , title=Fishes: An Introduction to Ichthyology , last2=C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (fish)
The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding. Anatomy The opercular series contains four bone segments known as the preoperculum, suboperculum, interoperculum and operculum. The preoperculum is a crescent-shaped structure that has a series of ridges directed posterodorsally to the organism’s canal pores. The preoperculum can be located through an exposed condyle that is present immediately under its ventral margin; it also borders the operculum, suboperculum, and interoperculum posteriorly. The suboperculum is rectangular in shape in most bony fish and is located ventral to the preoperculum and operculum components. It is the thinnest bone segment out of the opercular series and is located directly above the gills. The interoperculum is triangular shaped and borders the suboperculum posterodorsally and the preoperculum anterodo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Total Length
Fish measurement is the measuring of individual fish and various parts of their anatomies, for data used in many areas of ichthyology, including taxonomy and fishery biology. Overall length Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. This measurement excludes the length of the caudal (tail) fin. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most bony fish), while total length measurements are used with Myxini (hagfish), Petromyzontiformes ( lampreys) and usually Elasmobranchii (shark Sharks are a group of elasmobranch cartilaginous fish characterized by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bembras Japonicus
''Bembras'' is a genus of marine ray-finned fish belonging to the family Bembridae, the deepwater flatheads. These fishes are found in the Indian Ocean and the western Pacific Ocean. Taxonomy ''Bembras'' was first proposed as a monotypic genus in 1829 by the French zoologist George Cuvier when he described ''Bembras japonica'' from Japan. Cuvier did not explain the etymology of ''Bembras'', however, it is thought that it may come from an ancient Greek word for some sort of small fish, such as anchovy, sprat or smelt. which at least dates as far back as Aristotle. Cuvier applied this type of name to other genera he put forward, such as ''Synodontis'', '' Salanx'' or ''Premnas''. Species There are currently seven recognized species in this genus: * '' Bembras adenensis'' Imamura & L. W. Knapp, 1997 * '' Bembras andamanensis'' Imamura, Psomadakis & Thein, 2018 * '' Bembras japonica'' G. Cuvier, 1829 * '' Bembras leslieknappi'' Imamura, Psomadakis & Thein, 2018 * '' Bembras l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
